Clean the seed, insert toothpicks, and suspend half in water. Place in bright light. After sprouting roots and stem, plant in well-drained soil, keeping top exposed. Water moderately and ensure drainage.
Choose loose, well-drained soil in full sun. Sow carrot seeds ¼ inch deep in rows, spacing lightly. Keep soil moist until germination. Thin seedlings to 2–3 inches apart. Harvest when roots reach desired size.
Plant sweet potatoes using slips after the last frost in warm, well-drained soil. Bury slips 2–3 inches deep, spacing 12–18 inches apart. Water regularly, provide full sun, and harvest before first frost.